In partial fulfilment for the requirement in Physics
Don Bosco Technical Institute – Makati
SY 2011-2012
Ms. April J. Cruz
Research Adviser
Chapter I – Introduction
I. Background of the Study
It was either the Chinese or the Greeks who discovered the properties of lodestone, which "contain magnetite, a natural magnetic material Fe304" (Jezek, 2006). This dated back to the first century, B.C. in the writings of Lucretius and Pliny the Elder, in which he mentions the "magical powers of |Height of table= _15. 5 cm_ |
|Number of Magnet Stages |Trial |Distance the Ball Traveled | |1 |1 |4.3 cm | | |2 |3.8 cm | | |3 |4.1 cm | |2 |1 |5.1 cm | | |2 |5.5 cm | | |3 |5.4 cm | |3 |1 |5.7 cm | | |2
